#include <stdio.h>
#include <ctype.h>
main()
{
  char input[20];
  char temp[20];
  int i = 0;
  int t = 0;

  printf("\nPlease enter no more than 20 characters of text:\n");
  scanf("%s", input);

  //increase i
  while(*(input+i))
  {
    i++;
  }
  //end increase
  i--;

  //reverse
  while(i >= 0)
  {
    temp[t] = input[i];
    i--;
    t++;
  }
  printf("%s", temp, "\n");
  //end reverse
  printf("\n");
  t=0;
  //uppercase
  while(*(temp+t)) 
  {
    *(temp+t) = toupper(*(temp+t));
    t++;
  }
  printf("%s\n", temp);
  //end uppercase
}